The ADS5444 is a 13-bit 250-MSPS analog-to-digital converter (ADC) that operates from a 5-V supply, while providing LVDS-compatible digital outputs from a 3

ADS5444-EP

Manufacturer Part NumberADS5444-EP
DescriptionThe ADS5444 is a 13-bit 250-MSPS analog-to-digital converter (ADC) that operates from a 5-V supply, while providing LVDS-compatible digital outputs from a 3
ManufacturerTexas Instruments
ADS5444-EP datasheet
 


Specifications of ADS5444-EP

Resolution(bits)13Sample Rate (max)(sps)250MSPS
# Input Channels1Snr(db)69
Sfdr(db)85Power Consumption(typ)(mw)2250
Operating Temperature Range(c)-55 to 125InterfaceParallel LVDS
Analog Voltage Av/dd(min)(v)4.75Analog Voltage Av/dd(max)(v)5.25
Digital Supply(min)(v)3Digital Supply(max)(v)3.6
ArchitecturePipelineInl(max)(+/-lsb)4.3
Sinad(db)68Input Range2.2V (p-p)
Reference ModeIntAnalog Input Bw(mhz)500
Pin/package80HTQFP  
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13-BIT 250-MSPS ANALOG-TO-DIGITAL CONVERTER
FEATURES
Controlled Baseline
– One Assembly
– One Test Site
– One Fabrication Site
Extended Temperature Performance of –55 C
to 125 C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product-Change Notification
(1)
Qualification Pedigree
13-Bit Resolution
250-MSPS Sample Rate
SNR = 69 dBc at 100-MHz IF and 250 MSPS
SFDR = 76 dBc at 100-MHz IF and 250 MSPS
SNR = 67.7 dBc at 230-MHz IF and 250 MSPS
SFDR = 77 dBc at 230-MHz IF and 250 MSPS
2.2-V
Differential Input Voltage
PP
Fully Buffered Analog Inputs
5-V Analog Supply Voltage
LVDS Compatible Outputs
Total Power Dissipation: 2 W
Offset Binary Output Format
DESCRIPTION
The ADS5444 is a 13-bit 250-MSPS analog-to-digital converter (ADC) that operates from a 5-V supply, while
providing LVDS-compatible digital outputs from a 3.3-V supply. The ADS5444 input buffer isolates the internal
switching of the onboard track and hold (T&H) from disturbing the signal source. An internal reference generator
is also provided to further simplify the system design. The ADS5444 has outstanding low noise and linearity over
input frequency.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TQFP-80 PowerPAD™ Package
Pin Compatible With the ADS5440
Military Temperature Range = –55 C to 125 C
(1)
Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
APPLICATIONS
Test and Measurement
Software-Defined Radio
Multichannel Base Station Receivers
Base Station Tx Digital Predistortion
Communications Instrumentation
RELATED PRODUCTS
ADS5424 - 14-Bit, 105 MSPS ADC
ADS5423 - 14-Bit, 80 MSPS ADC
ADS5440 - 13-Bit, 210 MSPS ADC
Copyright © 2006, Texas Instruments Incorporated
ADS5444-EP
SGLS360 – AUGUST 2006

ADS5444-EP Summary of contents

  • Page 1

    ... Test and Measurement Software-Defined Radio Multichannel Base Station Receivers Base Station Tx Digital Predistortion Communications Instrumentation RELATED PRODUCTS ADS5424 - 14-Bit, 105 MSPS ADC ADS5423 - 14-Bit, 80 MSPS ADC ADS5440 - 13-Bit, 210 MSPS ADC Copyright © 2006, Texas Instruments Incorporated ADS5444-EP SGLS360 – AUGUST 2006 ...

  • Page 2

    ... ADS5444-EP SGLS360 – AUGUST 2006 AIN A1 TH1 AIN VREF Reference CLK Timing CLK The ADS5444 is available in an 80-pin TQFP PowerPAD™ package. The ADS5444 is built on a state-of-the-art Texas Instruments complementary bipolar process (BiCom3X) and is specified over the full military temperature range (– ...

  • Page 3

    ... Using 36 thermal vias ( array). See the Application Section. PACKAGING/ORDERING INFORMATION Specified Package (1) Temperature Marking Range PFP – 125 C ADS5444M-EP (1) (1) TEST CONDITIONS Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 (1) Ordering Transport Number Media, Quantity ADS5444MPFPEP Tray, 96 VALUE / UNIT –0 0 – ...

  • Page 4

    ... ADS5444-EP SGLS360 – AUGUST 2006 1000 100 10 Electromigration Fail Mode 1 0.1 120 130 Figure 1. ADS5444MPFPEP Operating Life Derating Chart 4 Wirebond Voiding Fail Mode 140 150 160 Continuous T − Submit Documentation Feedback www.ti.com 170 180 ...

  • Page 5

    ... IN A Full temp range MHz Full temp range f = 100 MHz full scale 100 MHz MSPS Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 MIN NOM MAX 4.75 5 5.25 3 3.3 3.6 2.2 2.4 10 250 3 50% –55 125 = 125 C, sampling rate = 250 MSPS, ...

  • Page 6

    ... ADS5444-EP SGLS360 – AUGUST 2006 ELECTRICAL CHARACTERISTICS (continued) Min, Typ, and Max values full temperature range 50% clock duty cycle DRV DD noted) PARAMETER DYNAMIC AC CHARACTERISTICS SNR Signal-to-noise ratio SFDR Spurious free dynamic range HD2 Second harmonic ...

  • Page 7

    ... MHz 230 MHz 300 MHz 400 MHz MHz IN Inputs tied to common-mode Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 = 125 C, sampling rate = 250 MSPS, MAX differential clock (unless otherwise PP MIN TYP MAX UNIT 69 68 67.6 66.5 dBc ...

  • Page 8

    ... ADS5444-EP SGLS360 – AUGUST 2006 TIMING CHARACTERISTICS AIN t CLK CLK, CLK N D[12:0], N−3 OVR, OVR t r DRY, DRY TIMING CHARACTERISTICS Min, Typ, Max over full temperature range, 50% clock duty cycle, sampling rate = 250 MSPS, AV PARAMETER t Aperture delay A t Clock slope independent aperture uncertainty (jitter) ...

  • Page 9

    ... VREF GND AVDD GND CLK CLK GND AVDD AVDD GND AIN AIN GND AVDD GND DEVICE INFORMATION PFP PACKAGE (TOP VIEW) GND Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 GND DVDD OVR ...

  • Page 10

    ... ADS5444-EP SGLS360 – AUGUST 2006 TERMINAL NAME NO 13, 14, 19, 21, AVDD 23, 25, 27, 31, 35, 37, Analog power supply 39 DVDD 1, 51 12, 15, 18, 20, GND 22, 24, 26, 28, 30, 32, Ground 34, 36, 38, 40, 52, 65 VREF 6 CLK 10 CLK 11 AIN 16 AIN 17 OVR, OVR 42, 41 D0, D0 50, 49 D1– ...

  • Page 11

    ... N D – – IMD3 is either given in units of dBc ( Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 ( the power of all the S ( the power of the first five S ( the power ...

  • Page 12

    ... ADS5444-EP SGLS360 – AUGUST 2006 Spectral Performance (FFT For 10 MHz Input Signal) 0 −20 −40 −60 −80 −100 −120 100 110 120 Frequency − MHz Figure 3. Spectral Performance (FFT For 170 MHz Input Signal) 0 SFDR = 74.6 dBc SNR = 68.4 dBc − ...

  • Page 13

    ... For 51.5 MHz and 52.5 MHz Input Signals) 0 −20 −40 −60 −80 −100 −120 100 110 120 G007 Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 Spectral Performance Frequency − MHz G006 Figure 51.5 MHz, −16 dBFS IN1 F = 52.5 MHz, −16 dBFS IN2 IMD3 = 99 ...

  • Page 14

    ... ADS5444-EP SGLS360 – AUGUST 2006 TYPICAL CHARACTERISTICS (continued) Two-Tone Intermodulation Distortion (FFT For 151 MHz and 152 MHz Input Signals 151 MHz, −7 dBFS IN1 F = 152 MHz, −7 dBFS IN2 IMD3 = 89.4 dBFS −20 −40 −60 −80 −100 −120 100 110 120 Frequency − ...

  • Page 15

    ... MHz IN 0.2 0.0 −0.2 −0 1050 2050 3050 4050 5050 6050 7050 8050 G017 Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 F = 300 MHz, −16 dBFS IN1 F = 301 MHz, −16 dBFS IN2 IMD3 = 101.9 dBFS Frequency − MHz G014 Figure 16. ...

  • Page 16

    ... ADS5444-EP SGLS360 – AUGUST 2006 TYPICAL CHARACTERISTICS (continued) Integral Nonlinearity 2.0 1.5 1.0 0.5 0.0 −0.5 −1.0 −1 250 MSPS MHz IN −2.0 0 1000 2000 3000 4000 5000 6000 7000 8000 Code Figure 19. AC Performance vs Input Amplitude 120 SFDR (dBFS) 100 80 SNR (dBFS) 60 SFDR (dBc ...

  • Page 17

    ... MSPS S 60 0.0 0.5 3.0 3.5 4.0 P−P G025 Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 Spurious Free Dynamic Range vs Clock Duty Cycle = 230 MHz f = 100 MHz Duty Cycle − % Figure 24. Signal-to-Noise Ratio vs Clock Level f = 100 MHz ...

  • Page 18

    ... ADS5444-EP SGLS360 – AUGUST 2006 TYPICAL CHARACTERISTICS (continued) Performance vs Clock Common Mode Level 250 MSPS S 75 SFDR 70 SNR Clock Common-Mode Voltage − V Figure 27. Signal-to-Noise Ratio vs AVDD Across Temperature 70 250 MSPS 100 MHz IN 69 69.0 68 − ...

  • Page 19

    ... C A 3.0 3.1 3.2 3.3 3.4 3.5 DRV − Supply Voltage − Figure 31. SNR vs Input Frequency and Sampling Frequency 68.5 68 150 200 250 f - Input Frequency - MHz SNR - dBc Figure 32. Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 3.6 3.7 G031 67.5 67 66.5 66 65.5 300 350 68 69 M0048-05 400 19 ...

  • Page 20

    ... ADS5444-EP SGLS360 – AUGUST 2006 TYPICAL CHARACTERISTICS (continued) 300 250 200 80 89 150 100 100 65 20 SFDR vs Input Frequency and Sampling Frequency 150 200 f - Input Frequency - MHz SFDR - dBc Figure 33. ...

  • Page 21

    ... V to each of the inputs. This results The maximum swing is determined by the internal ADT1-1WT R S 0.1 F 100 1:1 1000 F = 8V/V V (18 dB) Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 AIN R ADS5444 50 W AIN R IN AIN R T ADS5444 100 IN ...

  • Page 22

    ... ADS5444-EP SGLS360 – AUGUST 2006 V From IN 50 Source 49.9 0.22 F Figure 36. Using the THS4509 With the ADS5444 Besides the OPA695, TI offers a wide selection of single-ended operational amplifiers that can be selected depending on the application gain block amplifier, such as the TI THS9001, can also be used with an RF transformer for high input frequency applications ...

  • Page 23

    ... The ADS5444 digital outputs are LVDS compatible. Application Information (continued) 0.1 F 1:4 MA3X71600LCT−ND Figure 38. Differential Clock 100 nF MC100EP16DT 100 100 nF 499 100 nF 113 Submit Documentation Feedback ADS5444-EP SGLS360 – AUGUST 2006 CLK ADS5444 CLK CLK ADS5444 CLK resistors ...

  • Page 24

    ... ADS5444-EP SGLS360 – AUGUST 2006 Power Supplies The use of low noise power supplies with adequate decoupling is recommended. Linear supplies are the preferred choice versus switched ones, which tend to generate more noise components that can be coupled to the ADS5444. The ADS5444 uses two power supplies. For the analog portion of the design, a 5-V AVDD is used, while for the digital outputs supply (DRVDD) we recommend the use of 3 ...

  • Page 25

    ... TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. OTHER QUALIFIED VERSIONS OF ADS5444-EP : Catalog: ADS5444 • ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...